13 September 1970 – 11 April 1971
TV Ratings (USA)
23.9 (No. 9)
Estimated Audience: 14,363,900
23.9 (No. 9)
Estimated Audience: 14,363,900
Episodes Copyright
1968 (27), 1970 (1-15, 19) – 1971 (16-18, 20-26, 28)
Bonanza - Season 12
